4.3BSD-Reno/src/lib/libc/string/strmode.c

/*-
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that: (1) source distributions retain this entire copyright
 * notice and comment, and (2) distributions including binaries display
 * the following acknowledgement:  ``This product includes software
 * developed by the University of California, Berkeley and its contributors''
 * in the documentation or other materials provided with the distribution
 * and in all advertising materials mentioning features or use of this
 * software. Neither the name of the University nor the names of its
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)strmode.c	5.3 (Berkeley) 5/18/90";
#endif /* LIBC_SCCS and not lint */

#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>

void
strmode(mode, p)
	register mode_t mode;
	register char *p;
{
	 /* print type */
	switch (mode & S_IFMT) {
	case S_IFDIR:			/* directory */
		*p++ = 'd';
		break;
	case S_IFCHR:			/* character special */
		*p++ = 'c';
		break;
	case S_IFBLK:			/* block special */
		*p++ = 'b';
		break;
	case S_IFREG:			/* regular */
		*p++ = '-';
		break;
	case S_IFLNK:			/* symbolic link */
		*p++ = 'l';
		break;
	case S_IFSOCK:			/* socket */
		*p++ = 's';
		break;
#ifdef S_IFIFO
	case S_IFIFO:			/* fifo */
		*p++ = 'p';
		break;
#endif
	default:			/* unknown */
		*p++ = '?';
		break;
	}
	/* usr */
	if (mode & S_IRUSR)
		*p++ = 'r';
	else
		*p++ = '-';
	if (mode & S_IWUSR)
		*p++ = 'w';
	else
		*p++ = '-';
	switch (mode & (S_IXUSR | S_ISUID)) {
	case 0:
		*p++ = '-';
		break;
	case S_IXUSR:
		*p++ = 'x';
		break;
	case S_ISUID:
		*p++ = 'S';
		break;
	case S_IXUSR | S_ISUID:
		*p++ = 's';
		break;
	}
	/* group */
	if (mode & S_IRGRP)
		*p++ = 'r';
	else
		*p++ = '-';
	if (mode & S_IWGRP)
		*p++ = 'w';
	else
		*p++ = '-';
	switch (mode & (S_IXGRP | S_ISGID)) {
	case 0:
		*p++ = '-';
		break;
	case S_IXGRP:
		*p++ = 'x';
		break;
	case S_ISGID:
		*p++ = 'S';
		break;
	case S_IXGRP | S_ISGID:
		*p++ = 's';
		break;
	}
	/* other */
	if (mode & S_IROTH)
		*p++ = 'r';
	else
		*p++ = '-';
	if (mode & S_IWOTH)
		*p++ = 'w';
	else
		*p++ = '-';
	switch (mode & (S_IXOTH | S_ISVTX)) {
	case 0:
		*p++ = '-';
		break;
	case S_IXOTH:
		*p++ = 'x';
		break;
	case S_ISVTX:
		*p++ = 'T';
		break;
	case S_IXOTH | S_ISVTX:
		*p++ = 't';
		break;
	}
	*p++ = ' ';		/* will be a '+' if ACL's implemented */
	*p = '\0';
}